178
CDUS42 KKEY 200533
CLIMTH
CLIMATE REPORT
NATIONAL WEATHER SERVICE KEY WEST FL
133 AM EDT THU AUG 20 2026
...............................
..THE MARATHON CLIMATE SUMMARY FOR AUGUST 19 2026
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1950 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 91 457 PM 96 2022 92 -1 93
MINIMUM 85 639 AM 73 1955 80 5 82
1963
1989
AVERAGE 88 86 2 88
PRECIPITATION (IN)
YESTERDAY 0.00 1.72 1986 0.17 -0.17 0.00
MONTH TO DATE 0.40 3.07 -2.67 2.56
SINCE JUN 1 4.91 11.07 -6.16 10.24
SINCE JAN 1 15.76 21.21 -5.45 15.68
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 23 21 2 23
MONTH TO DATE 395 399 -4 397
SINCE JUN 1 1639 1606 33 1604
SINCE JAN 1 3211 3229 -18 3288
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 5.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 75
LOWEST 63
AVERAGE 69
......................................................
THE MARATHON CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 92 95 2010
2012
2022
MINIMUM TEMPERATURE (F) 80 70 1963
SUNRISE AND SUNSET
AUGUST 20 2026........SUNRISE 701 AM EDT SUNSET 754 PM EDT
AUGUST 21 2026........SUNRISE 701 AM EDT SUNSET 753 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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